https://digitalmarketreports.com/news/23274/openai-co-founder-john-schulman-leaves-for-rival-anthropic/
OpenAI Co-founder John Schulman Leaves for Rival Anthropic
Aug 8, 2024 - John Schulman, one of the co-founders of OpenAI, has left the ChatGPT maker for rival Anthropic. Schulman announced his departure in a social media post on X
co founderrival anthropicjohn
https://www.theverge.com/news/784392/microsoft-365-copilot-anthropic-ai-models-feature
Microsoft embraces OpenAI rival Anthropic to improve Microsoft 365 apps | The Verge
Sep 24, 2025 - Microsoft is bringing Anthropic’s Claude Sonnet 4 and Claude Opus 4.1 to Microsoft 365 Copilot users.
microsoft embracesopenairival
https://techcrunch.com/2023/03/14/anthropic-launches-claude-a-chatbot-to-rival-openais-chatgpt/
Anthropic launches Claude, a chatbot to rival OpenAI's ChatGPT | TechCrunch
anthropic launches claude
https://www.theage.com.au/technology/chatgpt-s-biggest-rival-is-setting-up-shop-in-australia-20260115-p5nu7y.html
Anthropic Claude: ChatGPT’s biggest rival is setting up shop in Australia
Jan 15, 2026 - The multi-billion dollar AI start-up, Anthropic, is set to become the latest tech giant to establish a presence on local shores as Australia ramps up efforts...
anthropic claudebiggest rival
https://www.theinsaneapp.com/web-stories/anthropic-launches-openai-rival-claude-2
Anthropic Launches OpenAI Rival Claude
Mar 14, 2023 - Anthropic has launched an AI chatbot called Claude to rival OpenAI's ChatGPT. Claude can perform tasks like document searching, summarizing, writing, coding,...
anthropic launchesopenairival